No problem, I am going to go out on a limb and assume that the combination of refusal to load and battery failure are linked, along with the lack of function on the USB port, combine the three and everything points to a faulty logic board on the classic.
http://www.parts4ipods.com/epages/es...roducts/CLSLOG
Not the cheapest of parts as you can see, and quite honestly I would be tempted to replace at this stage rather than repair, with the 160Gb classic not costing too much.